//
//  Duck.m
//  delegate
//
//  Created by 李广帅 on 2018/3/20.
//  Copyright © 2018年 天蓬大元. All rights reserved.
//

#import "Duck.h"

@implementation Duck

- (void)swim
{
    NSLog(@"DuckCanSwim");
}

- (void)performFly
{
    [self.deletageForFly fly];
}
- (void)performQuack
{
    [self.deletageForQuack quack];
}



@end
